Watch it decide · Ledger #273
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.89· AUG 17, 2026, 9:00 PM· anthropic/claude-haiku-4.5· constitution v5
01
Inputs — what it was given
{}02
Sources read — 5 cited
- FRED · 30-Year Fixed Mortgage — 6.67 · 2026-08-13
- FRED · 10-Year Treasury — 4.68 · 2026-08-14
- FRED · 2-Year Treasury — 4.17 · 2026-08-14
- FRED · Fed Funds Rate — 3.63 · 2026-07-01
- FRED · S&P 500 — 7785.76 · 2026-08-14
03
The gate — deterministic verdict
Decision: published · computed in 18800 ms
5/5 series, all sourced and fresh.
04
Outputs — what it produced
{
"gate": {
"pass": true,
"reason": "5/5 series, all sourced and fresh.",
"confidence": 0.89
},
"market": {
"sources": [
{
"url": "https://fred.stlouisfed.org/series/MORTGAGE30US",
"asOf": "2026-08-13",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.67,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-08-14",
"name": "FRED · 10-Year Treasury",
"value": 4.68,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-08-14",
"name": "FRED · 2-Year Treasury",
"value": 4.17,
"seriesId": "DGS2"
},
{
"url": "https://fred.stlouisfed.org/series/FEDFUNDS",
"asOf": "2026-07-01",
"name": "FRED · Fed Funds Rate",
"value": 3.63,
"seriesId": "FEDFUNDS"
},
{
"url": "https://fred.stlouisfed.org/series/SP500",
"asOf": "2026-08-14",
"name": "FRED · S&P 500",
"value": 7785.76,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-08-13",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.67,
"prevAsOf": "2026-08-06",
"seriesId": "MORTGAGE30US",
"prevValue": 6.69
},
{
"asOf": "2026-08-14",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.68,
"prevAsOf": "2026-08-13",
"seriesId": "DGS10",
"prevValue": 4.63
},
{
"asOf": "2026-08-14",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.17,
"prevAsOf": "2026-08-13",
"seriesId": "DGS2",
"prevValue": 4.15
},
{
"asOf": "2026-07-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-06-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-08-14",
"unit": "index",
"label": "S&P 500",
"value": 7785.76,
"prevAsOf": "2026-08-13",
"seriesId": "SP500",
"prevValue": 7798.99
}
]
},
"briefId": 135,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.67%",
"caption": "30-year fixed mortgage at 6.67%, down 2 bps today, still anchored above historical averages."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.68%",
"caption": "10-year Treasury rose 5 bps to 4.68%, tracking a slight pullback in long-end safety demand."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.17%",
"caption": "2-year Treasury up 2 bps to 4.17%, keeping near-term policy expectations stable."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed funds rate unchanged at 3.63%, no new signals from the policy rate."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,785.76",
"caption": "S&P 500 at 7,785.76, reflecting modest equity stability alongside modest Treasury moves."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "With the 30-year fixed now at 6.67% and the 10–2 spread locked at 51 basis points, the yield curve remains compressed but mortgage originators have a marginal rate relief to pass through; the 199 basis point mortgage–Treasury spread offers no outsized incentive for refi, keeping purchase-focused volumes under pressure.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 1992,
"completionTokens": 341
},
"summary": "The 10-year pushed higher by 5 basis points while the 30-year fixed fell 2 basis points, leaving the 10–2 curve still shallow at 51 basis points.",
"headline": "Mortgage rates slip as Treasury long-end catches up to near-term tightness",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 137
}05
Proof — the hash-chained record
seq #273
row_hash 7d69fa9ac2f5c28c6e581f7f0a4882111bd600611b45da894a40126287b7fcfe
prev_hash cfea95367a5be8f8f1dddcfbff850bf63f51eecbffc62a93ac6ec831ec4f6ca0
This exact row, with its canonical preimage, is public at /api/ledger/export. Recompute its hash with the standalone verifier — it shares no code with this site. The chain head is timestamped into Bitcoin.
Evidence or it doesn't ship.